/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.flink.runtime.util;

import org.apache.flink.runtime.clusterframework.types.ResourceID;
import org.apache.flink.runtime.executiongraph.ExecutionAttemptID;
import org.apache.flink.runtime.io.network.ConnectionID;
import org.apache.flink.runtime.io.network.partition.ResultPartitionID;
import org.apache.flink.runtime.jobgraph.IntermediateResultPartitionID;
import org.apache.flink.runtime.shuffle.NettyShuffleDescriptor;
import org.apache.flink.runtime.shuffle.NettyShuffleDescriptor.LocalExecutionPartitionConnectionInfo;
import org.apache.flink.runtime.shuffle.NettyShuffleDescriptor.NetworkPartitionConnectionInfo;
import org.apache.flink.runtime.taskmanager.TaskManagerLocation;

import java.net.InetAddress;
import java.net.InetSocketAddress;

/**
 * Builder to mock {@link NettyShuffleDescriptor} in tests.
 */
public class NettyShuffleDescriptorBuilder {
	private ResourceID producerLocation = ResourceID.generate();
	private ResultPartitionID id = new ResultPartitionID();
	private InetAddress address = InetAddress.getLoopbackAddress();
	private int dataPort;
	private int connectionIndex;
	public NettyShuffleDescriptorBuilder setProducerLocation(ResourceID producerLocation) {
		this.producerLocation = producerLocation;
		return this;
	}

	public NettyShuffleDescriptorBuilder setId(ResultPartitionID id) {
		this.id = id;
		return this;
	}

	public NettyShuffleDescriptorBuilder setAddress(InetAddress address) {
		this.address = address;
		return this;
	}

	public NettyShuffleDescriptorBuilder setDataPort(int dataPort) {
		this.dataPort = dataPort;
		return this;
	}

	public NettyShuffleDescriptorBuilder setProducerInfoFromTaskManagerLocation(
			TaskManagerLocation producerTaskManagerLocation) {
		return setProducerLocation(producerTaskManagerLocation.getResourceID())
			.setAddress(producerTaskManagerLocation.address())
			.setDataPort(producerTaskManagerLocation.dataPort());
	}

	public NettyShuffleDescriptorBuilder setConnectionIndex(int connectionIndex) {
		this.connectionIndex = connectionIndex;
		return this;
	}

	public NettyShuffleDescriptor buildRemote() {
		ConnectionID connectionID = new ConnectionID(new InetSocketAddress(address, dataPort), connectionIndex);
		return new NettyShuffleDescriptor(
			producerLocation,
			new NetworkPartitionConnectionInfo(connectionID),
			id);
	}

	public NettyShuffleDescriptor buildLocal() {
		return new NettyShuffleDescriptor(
			producerLocation,
			LocalExecutionPartitionConnectionInfo.INSTANCE,
			id);
	}

	public static NettyShuffleDescriptorBuilder newBuilder() {
		return new NettyShuffleDescriptorBuilder();
	}

	public static NettyShuffleDescriptor createRemoteWithIdAndLocation(
			IntermediateResultPartitionID partitionId,
			ResourceID producerLocation) {
		return newBuilder()
			.setId(new ResultPartitionID(partitionId, new ExecutionAttemptID()))
			.setProducerLocation(producerLocation)
			.buildRemote();
	}
}
